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Questions tagged [traffic-filtering]

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0answers
118 views

Sysmon svchost and backgroundtaskhost connecting to random IP's

For some reason sysmon, svchost.exe and backgroundtaskhost.exe are connecting to some IP's. Why they connect to this IP's ? List of IP's sysmon connects 104.18.20.226 66.225.197.197 104.18.21.226 93....
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2answers
238 views

How can I monitor all activity from only one software with Wireshark?

I would like to know if it is possible in WireShark to monitor ONLY the activity coming from a single software. p.e. if I use CSVpad.exe, how can I monitor all activity from CSVpad?
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1answer
30 views

Ways to filter http traffic programmatically

How many ways are there to programmatically filter http trafic over device? Not only to capture packets and ban by regex as wireshark but to build a filter that for example requests a page, extracts ...
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0answers
30 views

Error while executing tc command on openSuse

I am trying to limit the tcp window size by using the tc command and iptable. I am trying to execute the below sequence of commands tc qdisc add dev eth0 root handle 1: htb default 30 tc class add ...
2
votes
1answer
8k views

Configure DD-WRT to Limit Bandwidth on Devices

I have flashed DD-WRT firmware to my TP-Link WRT841-N router, set the basic network configuration & wireless. I want to limit bandwidth on a user who is always using torrents which is causing my ...
0
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1answer
129 views

What are methods of blocking or redirecting websites in Windows?

What are ways besides the hosts file, that I can redirect or otherwise block websites entirely through the use of software? Malwarebytes Premium is able to redirect websites it detects are bad and ...
0
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1answer
528 views

Qubes Firewall Not Working-Blocking Anything

On Qubes R3.2 I am running an AppVM made off fedora-23 template with the NetVM as the sys.firewall. In the firewall rules I have Deny Network Access except...and have nothing checked and nothing in ...
0
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1answer
61 views

Why do we even use ad blockers at home when most home routers have filter lists?

I started pretty much like the rest of us with regular ad blocking extensions. But there is arguably a performance drop due to the additional checks each time you load a page. I then started using ...
0
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1answer
359 views

How to I configure iptables for both IP masquerading and firewalling at the same time?

I have a host that acts as a gateway for routing a home network to Internet. IP Masquerading has been enabled for months now and the system has worked fine. How do I configure it to function also as ...
0
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1answer
101 views

How do we stop or reduce P2P use of the guest Wifi?

I support a small business' tech issues. Their guest Wi-Fi is important since they want people sitting around and consuming their product. We’re currently using a consumer-grade access point with DD-...
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0answers
35 views

dir-300 router is able to block any website, but not Facebook [duplicate]

I'm trying to block the access to certain websites using the Website Filter section from Dlink DIR-300 Admin (Firmware 2.14, Hardware Bx which is the latest). It works for any keyword, except for ...
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2answers
300 views

DD-WRT AP with ethernet bridge

Good evening everyone! I'm looking to host a wifi access point using my DD-WRT (Linksys WRT54G) with a PC running Kali Linux 1.1.0 (Debian) to monitor the traffic. Effectively the traffic would flow ...
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1answer
74 views

MAC filtering for Network

I have TP link router and I want to block unwanted users on my network so I used MAC filtering but it has limitation that I can add only 64 users in it to allow on my network but I want to add more ...
2
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3answers
2k views

Alternative to 127.0.0.1 in hosts file

I have a bunch of websites blocked at the system level in my Windows 7 by using the etc/hosts file. So far, I've done it the usual way, by giving 127.0.0.1 as the website's IP address. However, I'd ...
2
votes
0answers
972 views

How to find out where my https traffic is being blocked

I have a network of machines around the country, connecting via https to a cloud-based server through cellular modems. Only one machine has a problem connecting. When I run nmap -p 443 <server_ip&...
1
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0answers
119 views

Filter squid cached files to multiple cache dirs

I am currently setting up a small home network - I've chosen to go with squid proxy and I am wondering if it is possible to setup a single squid instance with multiple cache_dirs so that different ...
0
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1answer
52 views

How can I filter my home network?

I live in an apartment with one roomate. They have a monopoly, as the complex actually has it's own special ISP they offer...and they restrict other, better providers like Verizon, Charter, and so on. ...
0
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1answer
843 views

TC command via webpage as a sudo

The main goal- run a tc command via webpage, starting with: tc qdisc del root dev eth0 (deletes all the filters) Following Simple linux commands from a webpage I am trying to add a tc command, but ...
5
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1answer
48k views

pfSense to route between multiple subnets on same LAN

I started with a fairly standard pfSense setup: one WAN and one LAN interface, LAN-to-WAN access via NAT. Now I needed a second logical subnet on the LAN, which I set up in the following way: ...
1
vote
1answer
71 views

how to survey and show every single connection from Firefox?

I want to find which files or data is downloaded while loading and interacting on a specific webpage. How do I show every connection attempt from Firefox? I would like to use command line tools (...
1
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2answers
365 views

Bandwidth monitoring grouped by domain/process

Under Windows platform, what is the simplest way to achieve bandwidth monitoring with the following grouping use cases: monitor all incoming/outgoing bandwidth grouped by domain/ip (http requests ...
1
vote
1answer
735 views

Privoxy: Disable “deanimate-gifs” filter

I'm using privoxy on a debian server and want to disable the privoxy filter deanimate-gifs. I found these instructions to disable it via the web-based toggle feature: Point web browser to http://...
0
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1answer
2k views

Stop Facebook at router?

I would like to limit when we can access Facebook from all our computers/devices. My thought is to put a filter on our router (ASUS N66U w/ stock firmware). I have tried to add a Network Services ...
2
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2answers
909 views

Drop IP fragments of a certain protocol

When conntrack is active, the iptables stack never sees a fragmented IP packet, only the reassembled one (source), so the -f test never matches. If I want to block any fragment I could set ...
2
votes
1answer
2k views

Route between two network interfaces with same IP address?

I would like to temporarily monitor/log/analyze what traffic is going in and out of my home. I would also like to keep my current router configuration unchanged. The router is a WiFi Home Router, so I ...
1
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2answers
19k views

What is well-known port number of P2P applications?

I have some trace files (truncated tcpdump file) contains traffic of a network. I want to separate packets of P2P applications such as BitTorrent,Skype,etc. Does any one have a list of well-known ...
1
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1answer
938 views

How to blacklist porn? [duplicate]

Is there a way to blacklist sites containing specific keywords? like for example "porn, xxx.. sex". My cheap router can only block 5 specific domains but not sites containing some keywords. Do you ...
2
votes
1answer
588 views

How can I filter incoming packets to my application?

I have only little experience with Wireshark. The problem is that when my server (3rd party app) receives a faulty packets, it crashes. I would need to filter the incoming packets and filter out such ...
1
vote
1answer
887 views

Is there any Base Filtering Engine (BFE) service in Linux similar to windows

In windows we have Base Filtering Engine which helps applications to monitor network traffic. Is there any similar service which runs in Linux too. Something similar to a packet filtering service. I ...
0
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2answers
1k views

TCP packets not captured by PHP listener

I have a device (GPS localizer) that is sending TCP (I think so) packets to my server on given IP address and through given port. Since I have only SSH access to that server, I opened up two sessions ...
1
vote
1answer
868 views

How to selectively filter or block non-http/s traffic?

I know that it is possible to filter web content, say, with Squid+ICAP Server. But, is it conceptually as well as practically possible to monitor, filter, and programatically transform arbitrary (...
0
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2answers
92 views

Providing Wireless for a Crowd

I want to provide limited internet access for a crowd of people (~50) who will be attending a 1-hour talk of mine, at a conference where wireless is not provided. But I want to give them access to a ...
6
votes
1answer
81k views

What port does Netflix device streaming use?

What port does Netflix device streaming use? Is this port also used by the website direct streaming in the Silverlight app? What is the HTTP Content-Type if it uses port 80? Thanks.
0
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1answer
405 views

Firewall traffic filtering that blocks some necessary services

I study at a college where they use Cyberrom for Internet traffic filtering. I use Open Vpn to connect to my server run by a Webhosting company. The VPN server listens on a 40000+ port. I can connect ...
5
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3answers
1k views

Filtering out adult content on Windows and Max OS X from a technically sophisticated user?

So I am trying to filter out adult content (porn, mainly) from the users on my home computers. I have read several other answers, but they seem to be pretty simplistic. I'm a tech geek, so I know all ...
3
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1answer
2k views

Need more than 32 wireless mac filters

Are there any home or small business wireless routers that have more than 32 mac address filters? I'm currently using a Linksys WRT120N with a 32 address capacity and 32 is not enough.
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2answers
4k views

Filtering non-local IP traffic with Wireshark

If I capture traffic through my wireless card, I get a ton of different kinds of packets showing up. I'd only like to see traffic that is destined for the internet, i.e., no network stuff that is ...
0
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2answers
853 views

Game server - How can I block connections from other countries?

I have a small server at home that I plan on putting a few game servers on, but I want to make sure only people from my country can join it. Is it possible to filter connection attempts to my server ...
6
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6answers
39k views

Block P2P traffic on a Linksys router WRT54G with Tomato firmware

I'm running a small wireless network (6 to 10 users) on a Linksys WRT54G with Tomato firmware sharing an Internet connection. I don't want the users to download files with BitTorrent (mainly used) and ...